Skip to Content
Merck
All Photos(1)

Key Documents

40288

Sigma-Aldrich

6,6-Dimethylfulvene

≥95%

Synonym(s):

5-(1-Methylethylidene)-1,3-cyclopentadiene, 5-Isopropylidene-1,3-cyclopentadiene

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C8H10
CAS Number:
Molecular Weight:
106.17
Beilstein:
1616308
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

≥95%

form

liquid

refractive index

n20/D 1.548 (lit.)
n20/D 1.548

bp

76-77 °C/50 mmHg (lit.)

density

0.881 g/mL at 25 °C (lit.)

storage temp.

−20°C

SMILES string

C\C(C)=C1/C=CC=C1

InChI

1S/C8H10/c1-7(2)8-5-3-4-6-8/h3-6H,1-2H3

InChI key

WXACXMWYHXOSIX-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

General description

6,6-Dimethylfulvene [5-(1-methylethylidene)-1,3-cyclopentadiene] is a nonaromatic carbocyclic analog of isopropylbenzene. 6,6-Dimethylfulvene reacts with 2,2-bis(trifluoromethyl)-1,1-dicyanoethylene (BTF; 1) to afford the expected Diels-Alder cycloadduct, 7-(1-methylethylidene)-3,3-bis(trifluoromethyl)bicyclo[2.2.1]hept-5-ene-2,2-dicarbonitrile. Metal-free hydrogenation of 6,6-dimethylfulvene via frustrated Lewis pair (FLP) mediated triple domino reaction has been reported.The biotransformation of 6,6-dimethylfulvene by Pseudomonas putida RE213 has been studied.Cycloaddition of 6,6-dimethylfulvene with benzynes has been reported.
6,6-Dimethylfulvene undergoes nucleophilic reaction with lithium dichloromethide in the presence of THF at -75°C, selectively at its exocyclic double bond.

Application

6,6-Dimethylfulvene may be employed in the following studies:
  • One-pot synthesis of ansa-metallocenes.
  • Synthesis of endo and exo-adducts with maleic anhydride.
  • Synthesis of fulvenols or the corresponding trimethylsilyl ethers.

Pictograms

FlameHealth hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Asp. Tox. 1 - Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

109.4 °F - closed cup

Flash Point(C)

43 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

One-Step Synthesis of Organolanthanide (II) Complexes from the Metal.
Recknagel A and Edelmann FT.
Angewandte Chemie (International Edition in English), 30(6), 693-694 (1991)
Functionalization of 6, 6-Dimethylfulvene: A Fulvene Analogue of the Aldol Condensation.
Nystrom JE, et al.
Tetrahedron Letters, 29(39), 4997-5000 (1988)
Michael H Howard et al.
The Journal of organic chemistry, 68(1), 120-129 (2003-01-08)
Reaction of 2,2-bis(trifluoromethyl)-1,1-dicyanoethylene (BTF; 1) with 6,6-dimethylfulvene (2) affords the expected Diels-Alder cycloadduct, 7-(1-methylethylidene)-3,3-bis(trifluoromethyl)bicyclo[2.2.1]hept-5-ene-2,2-dicarbonitrile (3), in good yield. The cycloadduct 3 is unstable and exists in equilibrium with the starting materials in less polar solvents. In more polar environment, the
Sergej Tamke et al.
Organic & biomolecular chemistry, 12(45), 9139-9144 (2014-10-09)
The frustrated Lewis pair (FLP) mediated hydrosilylation of pentafulvenes is described yielding allyl silanes with high regioselectivity in excellent yields. While phenyl substituted allyl silanes undergo B(C6F5)3-mediated rearrangement to vinyl silanes, dimethyl derivatives experience FLP-catalyzed hydrogenation followed by an unprecedented
R W Eaton et al.
Applied and environmental microbiology, 62(3), 756-760 (1996-03-01)
The biotransformation of 6,6-dimethylfulvene [5-(1-methylethylidene)-1,3-cyclopentadiene], a nonaromatic C(inf5) carbocyclic analog of isopropylbenzene, was examined by using Pseudomonas putida RE213, a Tn5-generated dihydrodiol-accumulating mutant of the isopropylbenzene-degrading strain P. putida RE204. 6,6-Dimethylfulvene was converted to a single chiral product identified as

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service